Core 3 Revision Notes

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OCR Mathematics
Tech Wilkinson
Note by Tech Wilkinson, updated more than 1 year ago More Less
Tech Wilkinson
Created by Tech Wilkinson over 10 years ago
Tech Wilkinson
Copied to Note by Tech Wilkinson over 10 years ago
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DOMAINeg. xvalues function performed on

RANGEeg. yresults from function calculations

MAPPING ONE-ONE MANY-ONE ONE-MANY MANY-MANY

FUNCTION CONDITIONS COMPOSITE INVERSE DEFINED EITHER ALL ELEMENTS ONE-ONE MANY-ONE fg(x) g(x) f(g[x]) ONE-ONE DOMAIN OF f^-1 = RANGE OF f RANGE OF f^-1 = DOMAIN OF f MAKE x SUBJECT; THEN REWRITE "SWAPPING" x's AND y's (OR f(x)'s)

1 - Algebra and functions

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